Dolly



FIG. 1 is a bottom plan view of a dolly showing my new design;

FIG. 2 is a side elevational view thereof, the opposite side elevational view being a mirror image of that shown;

FIG. 3 is a front elevational view thereof, the rear elevational view being a mirror image of that shown; and,

FIG. 4 is a top perspective view thereof, the broken lines are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a dolly as shown and described. 